I cam to know that firefox social integration feature is introduced in from firefox 15 onwards.But i dont find any option to use it.Later i came to know that it is optional and we have to enable it.Then i go to about:config and enabled social.enabled, a small button came in the firefox when i click on it it shows a message notlogged in.Please help me so that i can use the social integration feature.Iam using firefiox 17 nightly on windows xp